Wheel hub and brake drum



Dec. 11, 1934.

l. A. WYANT ET AL WHEEL HUB AND BRAKE DRUM Filed Jan. 16, v 1933 2 Sheets-Sheet 1 \n a N1 AM) $951. Ch flea \J. lDaKe x-f MM W AWOYYLQJQ Dec. 11, 1934. A: V/YANT ET AL 1,984,169

WHEEL HUB AND BRAKE DRUM Filed Jan. 16, 1933 2 sheetsrsheet 2 I g (g x\ W \n eh 0Y5 Ln A. \Jggvi 25: iggflcs was Re.

Patented Dec. 11, 1934 UNITED STATES PATENT OFFICE I 1,984,169 WHEEL HUB AND BRAKE DRUM Ira A. Wyant, Muskegon, and Charles W. Dake, Grand Haven, Mich., assignors to Campbell, Wyant & Cannon Foundry Company, Muskegon, Mich, a corporation of Michigan Application January 16, 1933, Serial No. 651,876

4 Claims. (Cl. 301-45) This invention relates to wheels for vehicles, of said ribs may be formed thereon, and at the particularly motor vehicles, and is more espefree edge of the shell it may be provided with a cially concerned with a hub construction for short annular sealing flange 4. This shell is dewheels of this character with associated parts, signed to be lined at its inner curved surface 5 such as a brake drum, which may be d'rectly with a continuous relatively thin band 5 of cast connected with and in effect form an integral iron which is centrifugally cast thereagainst and part of the hub construction. V fused continuously to the outer supporting shell, It is an object and purpose of the present inmaking use of the process of centrifugally castvention to provide a sheet metal hub and brake ing and continuously fusing the cast iron band 1.0 drum construction for motor vehicles, fabricated as disclosed in the prior pending application of in a novel manner so as to reduce the cost of Donald J. Campbell, Serial No. 512,792, filed Febmanufacture of such parts. A further object of ruary 2, 1931, and other pending applications of the invention is to build the hub construction said Donald J. Campbell such as Serial No. 573,949. and the combined hub and brake construction A second member of the construction isformed of such form that it may be made up of parts from sheet steel or other equivalent plate metal 15 readily drawn or pressedfrom sheet metal, or and pressed into a hub housing 6 of the form other suitable sheet or plate metal, and secure the shown from which an annular flange 'I in a verparts together in a very simple and practical tical plane extends at one end, the same at its manner to obtain a uniform strength throughout peripheral edges being slightly offset, as indithe construction. It is a still further object of cated at 8, whereby the flange 2 of the brake the invention to provide as one part of the condrum shell 1 may seat against said oifset and struction a brake drum which consists of an be permanently connected therewith as by weld outer supporting shell of sheet steel or the like ing. lined with cast iron, thereby providing the most At equally spaced distances around the hub 6 desirable braking surface, and to so construct the metal is pressed to provide embossings 9,

this part of the construction and form the imeach of which has a vertical end 10 with an openmediate hub construction to complement the same ing 11 therein for the passage of spoke securing in Such a manner that the two are Ve y simply bolts. The hub 6, at its end farthest away from d easily permanently on ect d ogether by the brake drum, has an integral bearing cup Welding 0 Other quivalent method of conformed therein by return bending the metal and 30 nection. pressing the same within the end of the hub mem- An u de a d n the invention may be her 6, as indicated at 12, and making an opening had f om the following description, ta in surrounded by a continuous annular flange 13 neetiOn wit t a p y drawings, in as shown for the passage of the axle, a hearing bewhich, tween the end of the hub and the axle to be cari Fig. 1 is a central longitudinal axial section ied within said cup. through the combined hub and brake drum. The third member of the construction consists F 2 is an end elevation thereof o g at of a cylindrical member 14 of sheet metal in the the same from the right. end of which, farthest away from the bearing 40 Fig. 3 iS a View Similar o 2 O a Slightly cup 12, a second bearing cup is formed in sub- 40 different form of construction embodying the stantially the same manner, that is, by return same invention, and bending the metal of the cylinder 14 at one end F 4 is a Section Similar to that shown i into the cylindrical member 14, as indicated at Fig. 1 of the form of construction illustrated in 15, d providing an opening in the bottom of the Fig. 3. cup for the passage of the axle which opening 45 Like reference characters refer to like parts i urro ded by n annular flange 1 The in the different fig e 1 t e d aw posite end of the cylinder 14 is return bent and The Combined hub and b a Co t io extended outwardly, as indicated at 17, and at illu at i F 1 and Consists of ee spaced intervals around the outer edge of the 5 p one is the brake drum D Se, Consisting part 17 ears 18 extend therefrom to enter the of an outer cylindrical shell 1 of sheet steel recesses of the embossings 9 and bear against pressed or rolledor otherwise formed into shape the inner sides of the vertical ends 10 of said emwhich at one edge has an inturned annular bossings. Said cars 18 have openings to aline flange 2. The shell may be formed with a conwith the openings 11 and each ear at its free tinuous annular rib 3 as shown, or more than one end is formed with a lip 19 turned at right angles to serve as holders or retainers for nuts at the inner ends of the spoke securing bolts.

In Fig. 3 the construction described is changed slightly. The brake drum member remains the same as previously described. The hub member is formed with two parts, each of the parts carrying a bearing cup. The portion of the hub member nearest the brake drum comprises an annular section 20 of the form shown, from which the flange '7 extends with the offset portion 8 to be joined to the flange 2 of the brake drum shell. The part 20 is continued in a section 17a similar to the section 17 previously described and from which an inner bearing cup construction extends consisting of the parts 14a, 15a and 16a similar in all respects to theparts 14, 15 and 16 previously described with reference to Fig. 1. The embossings or pressed out portions 9 are made at spaced intervals around the part 20, having openings therethrough for the passage of spoke securing bolts, and in making said openings a part of the metal is turned at right angles as indicated at 18a, to form the retainers for the nuts at the inner ends of said bolts. Between the parts 17a and 2D the metal is pressed inward annularly making a shoulder 21 as shown in Fig. 4.

The third member of the construction shown in Fig. 4 is an outer hub section 23 having ears 24 extending therefrom to lie against the outer sides of the ends of the embomings 9 and with openings 11a therethrough for passage of the spoke securing bolts. The outer end of the member 23 is provided with a bearing cup 12a, 13a similar in all respects to the bearing cup 12, 13 previously described.

It is evident that with this construction a complete assembly of vehicle wheel hub and brake drum may be provided, with the necessary bearing holding cups, and readily and easily connected together, all parts being of sheet or plate metal which may be quickly and easily and uniformly fabricated by using suitable dies for such purpose. The cost of manufacture is low and the production of the combined hub and brake drum assembly is very economical. The connection of the sheet metal parts together at their contacting portions is very easily performed by electric Welding. There is no machining required on the assembled construction except the inner braking surface of the brake drum 5 and the free annular edge portions of the brake drum.

The constructions thus described may be varied in details without departing from the invention. The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope.

We claim:

1. A device of the class described comprising a drawn steel hub member progressively enlarging from its outer end toward its inner side and formed with a plurality of spaced apart outwardly extending embossed portions around it, the inner side of said hub member comprising an outwardly extending flange adapted to be located substantially in a radial plane, an inner hub member of annular shape comprising a bearing cup and ears extending therefrom at one end to enter said embossed portions, said ears and the outer ends of said embossings having alined openings, and a brake drum supporting shell of like metal welded to said vertical flange.

2. A device of the class described comprising a drawn steel hub member progressively enlarging from its outer end toward its inner side and formed with a plurality of spaced apart outwardly extending embossed portions around it, the inner side of said hub member comprising an out wardly extending flange adapted to be located substantially in a radial plane, and an inner hub member of annular shape comprising a bearing cup and ears extending therefrom at one end to enter said embossed portions, said ears' and the outer ends of said embossed portions having alined openings.

3. A device of the class described comprising a drawn steel hub member progressively enlarging "I' from its outer end toward its inner side and formed with a plurality of spaced apart outwardly extending embossed portions around it, the inner side of said hub member comprising an outwardly extending flange adapted to be located substantially in a radial plane, and an inner hub member of annular shape comprising a bearing cup having a radially extending portion located against and adapted to be fastened to the inner side of said hub, said embossed portions being located radially outward from the innermost points of contact between the inner side of the hub and the radially extending portion of the cup.

4. A construction consisting of a hub gradually increasing in size from its inner end and having a concentrically curved surface and terminating in a radial flange and a second member having a cylindrical sleeve and a radially extending portion integral therewith, said portion having a complementary concentrically curved surface r adapted to be located adjacent to the first mentioned concentrically curved surface of the hub whereby exact alinement of the cylindrical sleeve within the hub is had.

IRA A. W YANT. CHARLES W. DAKE. 

